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Table 2.
Estimates of the ages of shell generations in NGC 474 for various dark matter halos.
| Name or |
 |
rs | T1G | T2G | |
|---|---|---|---|---|---|
SHMR  |
HMCR  |
[kpc] | [Myr] | [Myr] | |
| −1 | −1 | 11.88 | 32.9 | 1410 | 990 |
| −1 | 1 | 11.88 | 15.8 | 1160 | 800 |
| 1 | −1 | 12.54 | 65.1 | 1080(1560) | 860(1090) |
| 1 | 1 | 12.54 | 31.2 | 810(1150) | 650(810) |
| Preferred halo | 12.21 | 32.0 | 1050 | 810 | |
| MOND-fitting halo | 11.8 | 17.9 | 1280 | 870 |
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